I got a Breakshot recently and it is a really fun game and played great for a while, but a couple of days ago the upper right flipper stopped working correctly. When I push the right flipper button the upper flipper will not fire at all about half the time and the other half the time it fires pretty far out of sync. I checked the diagnostics and saw the EOS for the upper flipper is dead.
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I opened the cabinet to look and am kind of confused by what I am seeing. The main flippers have the expected EOS switch with a diode that are touched by the underside of the flipper mech when it is fully extended. But, the one on the upper flipper make zero sense, it is very short, cannot touch the flipper at EOS and even looks like it is backwards (if the one side was long enough) . Here are a couple of pictures, but it is hard to see it. I am mostly curious how this flipper was ever working with that EOS in there. Or, because it am relatively new to pin repair am I missing something?

I ordered a new Capcom flipper Leaf Switch with a diode from Marco's that should be here Saturday. That will fix this, right?

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I have it closed up and this particular machine is pain to open the playfield, I have to fish out the balls with a magnet then unlatch it (which is not a great latch) so I will grab some pics when I open it back up to put in the new leaf switch. The other two mechs looks like one would expect and I am leaning toward your explanation that the longer leaf just broke off. But, do note that the one that would have been the longer one is on the outside even though this is a "normal open" switch, if the flipper mech were to hit the one that is now broken it would have opened the switch more.

I did exactly this, I started with the double leaf switch at the flipper button, it was aligned fine, all connectors seem solid, and both contacts look clean. I actually have a few extras of these that came with the machines extra parts, but it looks pretty new. I am pretty sure the leaf switch pictured above has had the longer leaf broken off and that is the issue.

I will update the thread whenever the new switch comes in and let you know if that solved the problem. I will also be putting new bumper skirts on the pop bumpers since they are cracked and cracking more. This game has some powerful pop bumpers .

This is an interesting comment and would explain how the upper flipper was working before with this short EOS. But, I have looked at all the relevant solder joints and don't see any cracks or cold joints. I will give it another look when I put in the new EOS. If these flippers don't need EOS then why would those be installed?

Looks like my new leaf switches won't be here till Monday so I will likely see if I can make it work without this EOS if that is really possible.

Yes, I have gotten them out via Test Coils and by hitting the ball eject from the underside. I have one of those magnetic grabbers and it works great to get the balls out pretty quickly. I am just neck deep in a Meteor restore and have been working on that today. I will pull open Breakshot and see if I can get it working this weekend.

frenchmarky or anyone else here, one last question before I install the new leaf switch for the EOS on the upper flipper. I ordered both kinds of Capcom leaf switches that were available from Marcos. In the below picture you can see both. One is slightly shorter than the other and did not come with a diode. the longer one (which is the right size for the EOS) did come with a diode, but I am wondering if that is even necessary. Should I just leave the diode off and see if it works? Or am I better off erring on the side of caution and putting the Diode in there?

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Fast Marco's shipping for the win and I will get this installed today and see how it works.